Welcome to SAP ABAP Interview Questions. SAP ABAP Data Dictionary is a central repository where we can maintain and organize objects related to databases.
Here we are providing real time SAP ABAP Interview Questions for freshers and experienced. Refer this post for SAP Interview Questions on Data Dictionary.SAP ABAP Interview Questions
1. What are the layers of data description in SAP R/3?
• The external layer.
• The ABAP/4 layer.
• The database layer.
2. Define external layer in SAP R/3?
In SAP, the external layer is the plane at which the user sees and interacts with the data, that is, the data format in the user interface. This data format is independent of the database system used.
3. What is ABAP/4 layer in SAP R/3?
The ABAP/4 layer describes the data formats used by the ABAP/4 processor.
4. Explain Database layer in SAP R/3?
The database layer describes the data formats used in the database.
5. What is a Data Class in SAP ABAP?
The Data class determines in which table space the table is stored when it is created in the database.
6. What is a Size Category in SAP ABAP?
The Size category describes the probable space requirement of the table in the database.
7. How many types of size categories and data classes are there in SAP ABAP?
There are five size categories (0-4) and 11 data classes only three of which are appropriate for application tables:
• APPL0- Master data (data frequently accessed but rarely updated).
• APPL1- Transaction data (data that is changed frequently).
• APPL2- Organizational data (customizing data that is entered when system is configured and then rarely changed).
The other two types are:
• USR
• USR1 – Intended for customer’s own developments.
8. What are SAP ABAP control tables?
The values specified for the size category and data class are mapped to database-specific values via control tables.
9. What is the function of the SAP ABAP transport system and workbench organizer?
The function of the transport system and the Workbench Organizer is to manage any changes made to objects of the ABAP/4 Development Workbench and to transport these changes between different SAP systems.
10. What is a table pool in SAP ABAP?
A table pool (or pool) is used to combine several logical tables in the ABAP/4 Dictionary. The definition of a pool consists of at least two key fields and a long argument field (VARDATA).
SAP ABAP Interview Questions on Data Dictionary
11. What are pooled tables in SAP ABAP?
These are logical tables, which must be assigned to a table pool when they are defined. Pooled tables can be used to store control data (such as screen sequences or program parameters).
12. What is a table cluster in SAP ABAP?
A table cluster combines several logical tables in the ABAP/4 Dictionary. Several logical rows from different cluster tables are brought together in a single physical record. The records from the cluster tables assigned to a cluster are thus stored in a single common table in the database.
13. How can we access the ABAP correction and transport system?
Each time you create a new object or change an existing object in the ABAP/4 Dictionary, you branch automatically to the Workbench Organizer or correction and transport system.
14. Which objects are independent transport objects in SAP ABAP?
Domains, Data elements, Tables, Technical settings for tables, Secondary indexes for transparent tables, Structures, Views, Match code objects, Match code Ids, Lock objects.
15. How is conversion of data types done between ABAP/4 & DB layer?
Conversion between ABAP/4 data types and the database layer is done within the database interface.
16. How is conversion of data types done between ABAP/4 & external level?
Conversion between the external layer and the ABAP/4 layer is done in the SAP dialog manager DYNP.
17. What are the Data types of the external layer?
ACCP, Char, CLNT, CUKY, CURR,
DATS, DESC, FLTP, INT1, INT2,
INT4, LANG, LCHR, LRAW, NUMC,
PREC, QUAN, RAW, TIMS, UNIT,VARC.
18. What are the Data types of the ABAP/4 layer?
Possible ABAP/4 data types:
C: Character.
D: Date, format YYYYMMDD.
F: Floating-point number in DOUBLE PRECISION (8 bytes).
I: Integer.
N: Numerical character string of arbitrary length.
P: Amount of counter field (packed; implementation depends on h/w platform).
S: Time Stamp YYYYMMDDHHMMSS.
V: Character string of variable length, length is given in the first two bytes.
X: Hexadecimal (binary) storage.
19. How can we set the table spaces and extent sizes in SAP ABAP?
You can specify the extent sizes and the table space (physical storage area in the database) in which a transparent table is to be stored by setting the size category and data class.
20. What is the function of the correction system in SAP ABAP?
The correction system manages changes to internal system components. Such as objects of the ABAP/4 Dictionary.
SAP Interview Questions on ABAP Data Dictionary
21. What are SAP ABAP local objects?
Local objects (Dev class $TMP) are independent of correction and transport system.
22. What is a SAP ABAP Development class?
Related objects from the ABAP/4 repository are assigned to the same development class. This enables you to correct and transport related objects as a unit.
23. What is a SAP ABAP data dictionary?
Data Dictionary is a central source of data in a data management system. Its main function is to support the creation and management of data definitions.
It has details about
• what data is contained?
• What are the attributes of the data?
• What is the relationship existing between the various data elements?
24. What functions does a ABAP data dictionary perform?
In a data management system, the principal functions performed by the data dictionary are
• Management of data definitions.
• Provision of information for evaluation.
• Support for s/w development.
• Support form documentation.
• Ensuring that the data definitions are flexible and up-to-date.
25. What are the features of SAP ABAP/4 Dictionary?
The most important features are:
• Integrated to a ABAP/4 Development Workbench.
• Active in the run time environment.
ABAP Interview Questions on Data Dictionary
26. What are the uses of the information in the SAP ABAP Data dictionary?
The following information is directly taken from the ABAP Data dictionary:
• Information on fields displayed with F1 help.
• Possible entries for fields displayed with F4 help.
• Match code and help views search utilities.
27. What are the basic objects of the ABAP data dictionary?
• Tables
• Domains
• Data elements
• Structures
• Foreign Keys
28. What are the aggregate objects in the SAP ABAP data dictionary?
• Views
• Match codes
• Lock objects.
29. In the SAP ABAP Dictionary Tables can be defined independent of the underlying database (T/F).
True.
30. SAP ABAP Dictionary contains the Logical definition of the table.
31. A field containing currency amounts in SAP ABAP (data type CURR) must be assigned to a reference table and a reference field. Explain.
As a reference table, a system containing all the valid currencies is assigned or any other table, which contains a field with the currency key format.
This field is called as reference field. The assignment of the field containing currency amounts to the reference field is made at run time. The value in the reference field determines the currency of the amount.
SAP ABAP Interview Questions Real time
"You found the information helpful and want to say thanks? Your donation is enough to inspire us to do more. Thanks a bunch!"
Posted in: 
0 comments:
Post a Comment
Note: Only a member of this blog may post a comment.